portable/src/ptypes.c

/*---------------------------------------------------------------------------*
 *  ptypes.c  *
 *                                                                           *
 *  Copyright 2007, 2008 Nuance Communciations, Inc.                               *
 *                                                                           *
 *  Licensed under the Apache License, Version 2.0 (the 'License');          *
 *  you may not use this file except in compliance with the License.         *
 *                                                                           *
 *  You may obtain a copy of the License at                                  *
 *      http://www.apache.org/licenses/LICENSE-2.0                           *
 *                                                                           *
 *  Unless required by applicable law or agreed to in writing, software      *
 *  distributed under the License is distributed on an 'AS IS' BASIS,        *
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 
 *  See the License for the specific language governing permissions and      *
 *  limitations under the License.                                           *
 *                                                                           *
 *---------------------------------------------------------------------------*/

#include "ptypes.h"

PINLINE ESR_BOOL isNumber(const LCHAR* str)
{
  if (!str || !*str)
    return ESR_FALSE;
    
  /* ignore minus sign */
  if (*str == L('-'))
    ++str;
    
  while (*str)
  {
    if (!isdigit(*str))
      return ESR_FALSE;
    ++str;
  }
  return ESR_TRUE;
}